Knot-staggering mechanism.



H. D. GOLMAN.

KNOT STAGGERING MECHANISM.

APPLICATION FILED MAR. 16, 1908.

5% W m.- fiarzzpg 3 SHEETSSHEET 1 flz'vezzior Patented Aug. 12, 1913.

H. D. COLMAN.

KNOT STAGGERING MECHANISM.

APPLICATION FILED MAR.16,1908.

Patented Ailg. 12, 1913.

3 SHEETSSHEET 2.

H. D. COLMAN.

KNOT STAGGERING MECHANISM.

APPLICATION FILED 1\1IAR.].6,1908v 1 0701 1 6 Patented Aug. 12, 1913.

3 SHEETSSHEET 3,

UNITED STATES P ENT OFFICE.

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ha ed-io like 16, 11 9118.- fl ritii 110 2. 355- of adjacentthreads oixtwo warps. The invention herein shown may be applied to a wanpsunitmg machine of the icy/1pc sound any British Patent No. 16384:, 18, 1905. The machine shown in my said from :two adjacent tore, when the uniting has and the warp threads are to thno may not pass through the harness eyes as readily as they would if the knots were set oil? .or staggered with relation to each other.

In the accompanying drawings, Figure 1 is 'a plan view of the -tying mechanism, and the staggering elements coepera'ting there'- with. Fig. 2 is a sectional view through a pair of wanp frames \operatmgm conaunction with the mechanism, the ends of the staggering elements being shown as aot- I Fig. 3 is was 1 of an old and; Fig. 4 is an elevational view of 1 mg upon the warp threads.

view of the united ,portions new war-p.

the gearing nism. Fig. ing members jeoted its full stroke. view of .the staggering arm :at about twothe other arm at about, one-third its full for actuating the tying mechamembers showing one stroke. 7 shown the arms reversed as to ig. 8 is an end their positions in Fig. 6. view of the tying-bill barn and Fig. '9 is longitudinal sectional view ,thro h the reel showing the tyingbill and its bill spring in elevation.

.5 is a plan v-lewof the staggershowing one of the arms pro- Fig. 6 is a similar hirds its full stroke and 121 having .a stripper hook 121.

The warps a and carried by the frames A and may be presented to the uniting nreehanisrn in any suitable manner.v In order to assist in a leper understandmg of the invention I sha ll use the same reference numerals 'on the drawings in this case asar'e sed 'oncorresponding parts in sald British m nt N0, 10,484 ,01 190.5.

The frame A comprises the clamps 20 and 2B in which the new warp a is rlgldly secured. The frame B comprises clamps 37 and 38 for the old warp I). he mechanisms for selecting corresponding threads from the w'a'rps i1 and b, [for severing the selected threads to provide loose ends, for the loose ends together, and for disposing the threads so when the knots are formed said 'kn'ots shall be staggered are mounted 4 upon a sli e or carriage 93 .w ch is moved British patent unites corresponding threads warps so that the knots: in the entire series are in a'linement, there: been completed be drawn ugh the {harness eyes, the drop wires, or I both, all of the knotted ends come in contact 1 with the edges 0% the harness eyes or drop; wires :at one time and in some instances they bysuitable mean transversely of the warps to bring. the mechanisms int-o operative relation with successive threads of the. warps.

The means for driving the mechanisms of the machine may he briefly described as follows: On the sleeve 108 is a sheave 106 which may receive motion through any suitable source. pinion 109 which meshes with a spur gear 114, said ear being supported by a shaft 114 in a racket 11 1 on the carriage or slide 493 that supports the tying-in mechanisms. On the same shaft which supports the ear 114 is a gear115 meshi with a s .uLr gear 120 looseon the kno'ttejr s aft 121,

e latter shaft being journaled in the bracket 122-011 the carriage 93. The cylinder 124 rigid on the timer shaft is provided with a peripheral skew gear 127 meshing with a skew! inion 227 .on the bill shaft 226, whereby sai bill shaft will be rotated in its cam cylinder 224 to tie the warp threads together in the manner described in the British atent alluded to. i

T e gearing for rotating the knotter shaft in the present instance is as follows: The gear 120 loose on the shaft 121 carries an elliptical gear 120; which meshes with a similar gear 120 the bracket 120. The shaft 120 -carries elliptical gear 120 which meshes with an eilipti'cal gear 1 20 on the shaft 121. On the shaft 121 is gear 121 meshing with a gear 121 on a shaft which drives a stripper On one end of the sleeve 108 is 21 fast on the shaft 120 in v threads.

skew gears 127 and 227, the cam cylinder 224, the bill shaft 226, and the means 206 for holding the ends of the severed threads while said threads are being wrapped.

around the bill shaft, shown in Fig. 2 of the drawings in this application are similar to corresponding parts in my said British patent.

On the sleeve 108 is a worm gear 1 driving a similar gear 2 on the shaft 3. The shaft 3 is provided with a bevel pinion 4 in mesh with the teeth of a bevel gear 5 on a shaft 6 mounted in the bracket 6 onthe carriage 93. The shaft 6 carries a cam disk 7 having cam grooves 8 and 9 in its upper and lower faces, respectively. In Fig. 1 portions of the bracket 6 and the gear 5 are broken away to disclose the cam disk 7 below said bracket and gear. Pivoted in the bracket 6 at .10 and adjacent to the cam disk are the staggering elements, said elements being herein illustrated as arms 11 and 12. These arms 11 and 12 have rearward extensions 13 and 14 provided with pins 15 having rollers 15 to enter grooves 8 and 9 in the cam disk 7. The portions of the arms distant' from the cam disk are provided with terminal fingers 16 and 17 to engage respectiye War threads and cause the knots to be staggere By reference to Fig. 1 it will be observed that the fingers of the arms are adjacent to the knot-tying mechanism and when in their passive or initial position they he between the knot-tying mechanism and the warp clamps 20 and 37. The finger 16 operates upon the warp b, the finger 17 operatin upon the warp a. When a thread selecte from the new warp and a thread selected from the old warp have been moved away from the remaining threads of the warps and into operative relation to the knot-tying mechanism, as shown in Fig. 46 of the British patent, said threads extend across the fingers 16 and 17. When one of the arms 11 and 12 is swung outwardly (away from the knot-tying mechanism) the finger of said arm engages the thread extending across it and pulls a part of said thread out of the holding means 206, thereby increasing the length of the thread between the clamp 20 or 37 and the knot-tying mechanism.

In operation, first one arm and then the next or both will act upon successive warp When the arm 11 operates alone, the knot will be formed at a point on the threads nearer the clamp 20 than the clamp 37. When the arm 12 alone acts, the knots will be formed at a point on the threads nearer the clamp 37 than the clamp 20. When both arms act, the knot will be formed at a point the location of which depends no /care upon the extent of movement of said arms. Each staggering element 11 and 12 will have movement imparted to it so-that the thread will be pulled out at about the time it takes its first wra around the tying bill, the elliptical gears eing so arranged that the bill will be rotating relatively slowly during the time that a staggering element is acting upon the threads. As soon as the staggering element has moved'out the necessary distance, the speed of the bill shaft is increased so that the knot may be tied quickly. The cam grooves in the cam disk 7 are so arranged that diflerent degrees of movements will be imparted to the staggerers at difi'erent times, for example, in Fig. 5 the upper arm 11 is shown as; having moved out its full stroke, while the lower arm 12 is stationary. Then in the next tying operation the upper arm moves out two-thirds of a .stroke and the lower arm moves out onethird of a stroke. On the next operation the lower arm moves out two-thirds and the u per one-third. The next movement will he efl'ective in moving the lower arm a full stroke while the upper arm remains stationary. It will be seen that the length of thread extending from the clamps 2O 37'to the knot-tying mechanism is increased by the arms 11 and 12 by the same amount at each operation.

The operations just enumerated are re peated to provide, in this instance, four rows of staggered knots. When the warps have been tied together, the knots will have the appearance of those represented in Fig. 3 so that the passage of the knots throu h the eyes of the dro wires, harness, or bot will be accomplishe more readily than would be possible were all of the knots in alinement.

I have not described in detail howthe warps may be clamped in their frames A and B and presented to the tying mechanism, for all of this is fully described in my said British Patent No. 10,484 of 1905. While I have shown and described the invention as applied to a particular machine, I would have it understood that artake of many other different machines.

I claim as my invention:

1. The combination, with mechanism for tying threads together, of means for ion tudinally shifting said threads through different distances into position" to be tied.

2. The combination of two clamps; means for loosel holding the ends of threads held by said c amps; a knot-tying mechanism located between. said holding means and said clamps; and devices located between said knot-tying mechanism and said clamps for variously ositioning the threads with relation to said mechanism so that the knots tied byt aaid mechanism shall be variantly l'oca e the invention may forms to adapt it to 3. The combination of two clamps; means for loosely holding the ends of threads held by said clamps; a knot-tying mechanism located between said holding means and said clamps; two members across which the threads extend between the clamps and the tying mechanism; and means for moving said members against the threads to pull the latter partly out of said holding means.

4. The combination, with a knot-tying mechanism, of means for supporting the threads to be tied together; two pivoted thread-positioning arms; and means for swinging said arms through various distances.

5. The combination, with a knot -,tying mechanism, of means for supporting the threads to be tied together; two thread-positionin arms pivoted on the same axis, each of said arms having an extension; and a r0- tatory grooved cam disk operativelyconnected with said extensions for swinging said arms through various distances.

6. The combination, with a knot-tying mechanism comprising a ,tyingbill and means for rotatin said bill at non-uniform speed, of means or positioning the thread during the rotation of the bill at low speed.

7. The combination, with a knot-tyin mechanism comprising a tying-bill an means for rotating said bill atnon-uniform speed, of means for supporting a thread adjacent to said bill, and means for longitudi-- nally shifting said thread during the rotation of the bill at low speed.

8. The combination, with a mechanism for tying together two warps, and means for movlng said mechanism transversely of the warps, of means for variously positionin threads of one warp with relatlon to sai mechanism so that the knots tied by said mechanism shall be variantly located.

9. The combination, with a warp-tying mechanism, and means for moving said mechanism transversely of the warps, of means for holding the warps to be united; means acting upon threads of one warpto position them with relation to the warptying mechanisms; means 'acting upon threads of the other warp to position them with relation to the warp-tying mechanism and means for actuating the last mentioned two means in a predetermined order.

10. The combination, with means for supporting two warps, of traveling means for successively uniting the threads of said warps; and means traveling with said uniting means, for variously (positioning the threads with relation to sai uniting means so that the unions formed by said uniting means shall be variantly located.

11. The combination, with means for sup porting two warps, of a warp-uniting mechanism movable in a straight line transversely of the warps; and means for shifting threads longitudinally of the warps to cause the knots to be formed at various points in the length of the warps.

12. The combination with means for supporting two warps of traveling means for uniting the threa s of said warps; and

means traveling with said uniting means for longitudinally moving threads of the warps into position to'be tied.

13. The combination with means for supporting two warps, of means for uniting the threads of said warps, means for moving said uniting means transversely of the warps and means for longitudinally moving threads of the war s into osition to be tied.

H WAR D. COLMAN..

Witnesses:

A. E. Mnecrson, LOUISE CULvER. 

